TECHNICAL NOTES ON THE EEC-IV MCU - Auto diagnostics

values. Divide them by 4 to convert to decimal.
RPM
L
O
A
D
%
500 700 900 1100 1300 1500 2000 2500 3000 4000
75 9.25 9.25 13.00 13.00 15.50 18.25 23.50 23.50 23.50 23.50
60 9.25 11.50 13.00 13.00 15.50 18.25 23.50 23.50 23.50 23.50
50 9.00 10.25 11.50 12.75 15.00 19.75 25.50 25.50 25.50 25.50
40 16.00 16.00 16.00 16.00 18.50 24.25 31.25 31.25 31.25 31.25
30 23.00 24.25 23.00 27.50 35.75 37.00 38.00 38.00 38.00 38.00
23 25.00 26.00 30.50 38.75 40.25 42.00 43.75 43.75 43.75 43.75
15 28.00 28.00 28.00 31.25 33.25 34.25 34.25 34.25 34.25 34.25
05 28.00 28.00 28.00 27.25 29.00 30.00 30.00 30.00 30.00 30.00
Table 28: Limp Mode Spark Table [Deg BTDC]
Eectch98-Part2.fm
The Limp Mode Spark Table [Deg BTDC] Table lives at 7614 (30228 decimal) as unsigned byte
values that must be divided by 4 to convert to their real values.
0 0 0 0 2 2 2 2
Table 29: Injector Output Port Table
The Injector Output Port Table lives at (29105 decimal) for the A9L as unsigned bytes.
Raw Load
Table Row
Pointer
0 0
0.04998779296875 0
0.100006103515625 1
0.600006103515625 6
0.75 7
1.99996948242188 7
Table 30: Load Scaling
The Load Scaling Function parameters for the A9L are located at 6C62. The table is
24 bytes in size, organized in a 2-byte by 2-byte unsigned, interleaved format. The
“X” values (Load) must be divided by 32768 to convert them and the “Y” values (Row
EEC-IV Technical Notes: Software 31 last edited: 9/29/98